"The data comes from bepress Digital Commons institutional repository subscribers, ranging from over 50,000 FTE to much smaller, and from the R1 Carnegie Class to law schools, health science centers, and community colleges."

Theoretical and practical relevance:

Does not analyze or mention extent to which case study outcomes are attributable to OA.

Does not analyze or mention extent to which OA impact might be systemic, accruing to non-readers/authors/institutions, ie general welfare through increased innovation and equality?